In bestseller Brennan’s roiling third suspense novel featuring FBI recruit Lucy Kincaid (after Kiss Me, Kill Me), the romantic Adirondacks vacation of Kincaid and PI Seth Rogan lasts only long enough for Rogan to chase an arsonist from their Spruce Lake lodge and stumble into an abandoned mine shaft. While rescuing Rogan, Kincaid discovers the body of a young woman carefully posed on a rocky shelf. A disappearing corpse, a corrupt sheriff’s deputy, and a town full of people too afraid or too involved in whatever’s going on make the couple determined to probe further. Rooting out the cancer that infects Spruce Lake reveals a convoluted history of increasingly deadly crime led by a monster whose ambitions threaten an end to Kincaid’s romance before she can work up the courage to tell Rogan she loves him. A bonus prequel novella, Love Is Murder, suggests more fun to come. (Nov.)